A&D AS2503, Instruction Manual

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８－１
８
. SPECIFICATIONS
8.1 AS2503
Item
Description
Number of Channels 1 channel/unit
Bridge resistance 60 -
1,000 Ω
Gage factor 2.00
Bridge power voltage supply 2, 3, 5, 9, 10 VDC
Disconnection check
function
Detecting disconnection and short of input bridge circuit (bridge impedance
of 120 Ω or larger) and displaying checked result by LED
Function ON/OFF is available by using the bottom setting SW
Cable length adjusting
function
Automatic adjusting of bridge power voltage drop according to a change of
cable length
up to bridge circuit (bridge impedance of 120 Ω or larger).
Function ON/OFF is available by using the bottom setting SW
Balance adjusting range
Deviation of resistive value:
±2%(±10,000 × 10
-6
in strain) (Both in auto-balance and fine-tuning)
Balance adjusting accuracy
Within ±1.0 × 10
-6
in strain (RANGE = 50k, Without FINE, BV = 2V)
Maximum input range
±125,000 × 10
-6
in strain (RANGE = 50k, FINE = ×2.5, BV = 2V)
Voltage sensitivity
±1,000 × 10
-6
in strain (RANGE = 1k, Without FINE, BV = 2V)
Measurement range change 1k, 2k, 5k, 10k, 20k, 50k (× 10
-6
in strain, × 2/BV in value), OFF
Fine adjustment
Continuously changeable in FINE RANGE,
2 step changing amount can be selected
Internal calibrator
Set value: ±1 - 9,999 × 10
-6
in strain,
Accuracy: ± (0.2%rdg + 0.5×10
-6
in strain)
Set value: ±0.01
– 99,99mV (±0.01 – 99,99mV at BV = 2V),
Accuracy: ± (0.2%rdg + 0.5×10
-6
in strain)
Nonlinearity Within ±0.1%/FS
Frequency response DC to 500 kHz, +1, -3dB
High-pass filter 0.5Hz: 2-pole Bessel (Filter descent response:
– 12 dB/oct)
Low-pass filter
10, 30, 100, 500, 1k, 3kHz, 4-pole Bessel
(Filter descent response: -24dB/oct)
Stability
Zero drift: Within ±0.1 × 10
-6
in strain/°C, Within ±0.5 × 10
-6
in
strain/24h
Sensitivity: Within ±0.01%/°C, within ±0.05%/24h
TABLE 8-1 Specification list for AS2503 (1)